Abstract
The objective of the present work was to explore the effect of CTS on structural, phenotypic and functional maturation of murine bone marrow derived dendritic cells (BMDCs). The maturity of BMDCs post treatment with CTS was evaluated using transmission electron microscopy (TEM) for structure changes, flow cytometry (FCM) for changes of key surface molecules, FITC-dextran bio-assay for phagocytosis, test of acid phosphatase activity (ACP) for biochemical changes and enzyme linked immunosorbent assay (ELISA) for cytokine level. We found that CTS downregulated the numbers of phagosomes inside the BMDCs, up-regulated the expression of MHC II, CD40, CD83, CD80 and CD86 molecules on BMDCs, decreased activity of ACP and phagocytosis by BMDCs, and induced production of higher levels of IL-12 and TNF-α. It was therefore confirmed that CTS could effectively promote the maturation of BMDCs. Our study provided more detailed evidence and rationale to support the application of CTS as an immune stimulator for enhancing host immunity and as an adjuvant in the design of DC-based vaccines.
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